Transparent, high-thermal-conductivity ultradrawn polyethylene/graphene nanocomposite films

Xinglong Pan, Lihua Shen, Albertus P.H.J. Schenning, Cees W.M. Bastiaansen (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

Transparent, ultradrawn, ultrahigh molecular weight polyethylene (UHMWPE)/graphene nanocomposite films with a high thermal conductivity are successfully fabricated by solution-casting and solid-state drawing. It is found that the low optical transmittance (<75%) of the ultradrawn UHMWPE/graphene composite films is drastically improved (>90%) by adding 2-(2H-benzontriazol-2-yl)-4,6-ditertpentylphenol (BZT) as a second additive. This high transmission is interpreted in terms of a reduced void content in the composite films and the improved dispersion of graphene both of which decrease light scattering. The high thermal conductivity is attributed to the π–π interaction between BZT and graphene. In addition, a high specific thermal conductivity of ≈75 W m−1 K−1 ρ−1 of the ultradrawn UHMWPE/graphene/BZT composite films is obtained, which is higher than most metals and polymer nanocomposite. These transparent films are potentially excellent candidates for thermal management in various applications due to a combination of low density, ease of processing, and high thermal conductivity.

Originele taal-2Engels
Artikelnummer1904348
Aantal pagina's7
TijdschriftAdvanced Materials
Volume31
Nummer van het tijdschrift40
DOI's
StatusGepubliceerd - 4 okt 2019

Vingerafdruk

Nanocomposite films
Graphite
Polyethylene
Graphene
Polyethylenes
Thermal conductivity
Ultrahigh molecular weight polyethylenes
Composite films
Opacity
Temperature control
Light scattering
Nanocomposites
Polymers
Casting
Metals
Processing
ultra-high molecular weight polyethylene

Citeer dit

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title = "Transparent, high-thermal-conductivity ultradrawn polyethylene/graphene nanocomposite films",
abstract = "Transparent, ultradrawn, ultrahigh molecular weight polyethylene (UHMWPE)/graphene nanocomposite films with a high thermal conductivity are successfully fabricated by solution-casting and solid-state drawing. It is found that the low optical transmittance (<75{\%}) of the ultradrawn UHMWPE/graphene composite films is drastically improved (>90{\%}) by adding 2-(2H-benzontriazol-2-yl)-4,6-ditertpentylphenol (BZT) as a second additive. This high transmission is interpreted in terms of a reduced void content in the composite films and the improved dispersion of graphene both of which decrease light scattering. The high thermal conductivity is attributed to the π–π interaction between BZT and graphene. In addition, a high specific thermal conductivity of ≈75 W m−1 K−1 ρ−1 of the ultradrawn UHMWPE/graphene/BZT composite films is obtained, which is higher than most metals and polymer nanocomposite. These transparent films are potentially excellent candidates for thermal management in various applications due to a combination of low density, ease of processing, and high thermal conductivity.",
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Transparent, high-thermal-conductivity ultradrawn polyethylene/graphene nanocomposite films. / Pan, Xinglong; Shen, Lihua; Schenning, Albertus P.H.J.; Bastiaansen, Cees W.M. (Corresponding author).

In: Advanced Materials, Vol. 31, Nr. 40, 1904348, 04.10.2019.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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